Fully automatic folding mobility scooter

Abstract

Provided is a fully automatic folding mobility scooter, comprising a scooter body folding mechanism (1), a scooter head mechanism (2), a driving wheel mechanism (3) and a seat mechanism (4), wherein t

Description

The present disclosure relates to the field of foldable structures of mobility scooters, and in particular to a fully-automatic foldable mobility scooter. BACKGROUND A mobility scooter is also called a scooter for lazy people, which refers to a vehicle and an auxiliary tool for the purpose of replacing walking with riding. In order to be conveniently stored in a car for outdoor use, an existing mobility scooter is generally arranged to be foldable, and when stored, the mobility scooter is folded to reduce the occupied space, such that the mobility scooter is conveniently stored in a trunk of the car. The foldable mobility scooter is provided with locking hooks to fix a front frame and a rear frame under an unfolded state and a folded state, so as to maintain the unfolded state and the folded state. However, locking hooks of an existing mobility scooter are in rigid connection to a driving structure, and the driving structure drives a folding structure and a locking hook structure simultaneously, such that vibration of a vehicle body will cause joints between the locking hooks and the driving structure to be damaged no matter in the unfolded state or the folded state, thereby causing failure of the locking hooks. For a certain existing mobility scooter, two driving structures are arranged to drive the folding structure and the locking hook structure respectively, but the manufacturing cost of the frame will be obviously increased, and the frame structure is made bulky. Therefore, it is necessary to manufacture a fully-automatic foldable mobility scooter to solve the above problems. SUMMARY An objective of the present disclosure is to provide a fully-automatic foldable mobility scooter so as to solve the problems mentioned in the background art. To achieve the above objective, the present disclosure provides the following technical solutions: A fully-automatic foldable mobility scooter, including a vehicle body folding mechanism, a vehicle head mechanism, a driving wheel mechanism and a seat mechanism, where the vehicle body folding mechanism includes a front frame assembly, a rear frame assembly, a linkage assembly, a supporting frame assembly, unfolding locking hook assemblies and folding locking hook assemblies, a left side and a right side of the front frame assembly are provided with front folding rods respectively, a left side and a right side of the rear frame assembly are provided with rear folding rods in correspondence to lower portions of the front folding rods respectively, and a front end of each rear folding rod is hinged to a middle of the front folding rod. The linkage assembly includes a telescopic motor, a driving cross bar, driving arms, first linkage arms and second linkage arms, a power telescopic end of the telescopic motor faces a front side, a rear end of the telescopic motor is hinged to the rear frame assembly, and a front end of the telescopic motor is hinged to a first hinged joint at a middle of the driving cross bar. Each driving arm is fixed at an end portion of the driving cross bar, a front lower side of each driving arm is hinged to a second hinged joint at a front end of the rear folding rod, the first hinged joint is higher than the second hinged joint, and an elongated hole is formed in a rear upper side of each driving arm. A third hinged joint is arranged at a front side of each second linkage arm, a fourth hinged j oint and a fifth hinged joint are arranged at a middle of each second linkage arm, a sixth hinged joint is arranged at an upper portion of a rear side of each second linkage arm, a first hook portion is formed in a lower portion of the rear side of each second linkage arm, and each third hinged joint is hinged to a rear end of the front folding rod. A front end of each first linkage arm is hinged to an inner side of the fourth hinged joint, a rear end of each first linkage arm is provided with a sliding limiting post protruding inwards, each sliding limiting post is arranged in the elongated hole, and two driving arms, two first linkage arms and two second linkage arms are arranged respectively and are in correspondence to a left side and a right side of the driving cross bar respectively. The supporting frame assembly includes front supporting rods, rear supporting rods and third linkage arms, each front supporting rod is in correspondence to a front side of the rear supporting rod, and a lower end of the front supporting rod and a lower end of the rear supporting rod are hinged to the rear frame assembly. A lower side of a front end of each third linkage arm is hinged to an outer side of the fifth hinged joint, and an upper side of a rear end of each third linkage arm is hinged to the front supporting rod. Each unfolding locking hook assembly includes a first locking plate, a first abutting post, a first limiting post, a first buckling post and a first spring, a front end of each first locking plate is hinged to an inner side of the sixth hinged joint, each first abutting post is fixed at a lower side of the first locking plate, each first abutting post is in correspondence to an upper portion of a rear end of the first linkage arm, each first limiting post is fixed at an inner side of the second linkage arm and is in correspondence to a position between the sixth hinged joint and the first hook portion, a first buckling groove is formed at a lower side of a rear end of each first locking plate, each first buckling post is fixed on the front supporting rod, each first buckling groove is buckled to the first buckling post, one end of each first spring is fixed at a middle of the first locking plate, and the other end of each first spring is fixed on the first hook portion. The folding locking hook assembles are mounted on the front folding rods and the rear folding rods and are configured to maintain a folded state of a vehicle body, the vehicle head mechanism is mounted at a front end of the front frame assembly, the driving wheel mechanism is mounted at a rear end of the rear frame assembly, and the seat mechanism is mounted at an upper end of the supporting frame assembly. Further description to the present disclosure: each folding locking hook assembly includes a second locking plate, an abutting plate, a second limiting post, a second buckling post and a second spring, where an upper end of the second locking plate is hinged to an inner side of the front folding rod, a second hook portion is arranged at a front side of a middle of the second locking plate, and a second buckling groove is formed at a front side of a lower end of the second locking plate. The second limiting post is fixed on the front folding rod and is in correspondence to an upper portion of the second hook portion, an upper end of the second spring is fixed on the front folding rod, and a lower end of the second spring is fixed on the second hook portion. The second buckling post is fixed on an inner side of the rear folding rod, the second buckling groove is buckled to the second buckling post in a folded state, and the abutting plate is fixed on an inner side of the second locking plate. An unlocking rod is arranged at a front end of each driving arm, and the unlocking rod is in correspondence to the abutting plate in the folded state. Further description to the present disclosure: two unfolding locking hook assemblies are arranged, and the two unfolding locking hook assemblies are in correspondence to the left side and the right side of the driving cross bar respectively. Further description to the present disclosure: the front frame assembly includes front hinged plates, front hinged arms and the front folding rods, where each front hinged plate is fixed on the vehicle head mechanism, a front end of each front hinged arm is hinged to a lower end of the front hinged plate, a front end of the front folding rod is hinged to an upper end of the front hinged plate, and a rear end of the front hinged arm is hinged to a front end of the rear folding rod. Further description to the present disclosure: the vehicle head mechanism includes a steering base, front wheels and a control handle, the front hinged plates are fixed on the steering base, the front wheels are rotationally mounted on the steering base, and a lower end of the control handle is fixed on an upper end of the steering base and is adjustable at a position in a vertical direction. Further description to the present disclosure: the rear frame assembly includes a mounting beam and the rear folding rods, and rear ends of the two rear folding rods are fixed on a left side and a right side of the mounting beam respectively. Further description to the present disclosure: the driving wheel mechanism includes connecting plates, a mounting bracket, rear wheels, shock absorbers and a rotary driving assembly, a front end of each connecting plate is fixed at a rear end of the rear folding rod, a front end of the mounting bracket is hinged to a rear end of the connecting plate, and an upper end and a lower end of each shock absorber are hinged to a middle of the rear supporting rod and the mounting bracket respectively. The rotary driving assembly is fixed on the mounting bracket, and the rear wheels are fixed at a power output end of the rotary driving assembly and are driven to rotate by the rotary driving assembly. Further description to the present disclosure: the driving wheel mechanism further includes first hinged rods, second hinged rods and anti-tipping wheels, an upper end of each first hinged rod is hinged to a rear end of the mounting bracket, each anti-tipping wheel is rotationally mounted at a lower end of the first hinged rod, and each second hinged rod is in correspondence to a lower portion of the mounting bracket. A front end of each second hinged rod is hinged to a lower end of the connecting plate, a rear end of each second hinged rod is hinged to a middle of the first hinged rod, and two first hinged rods, two second hinged rods and two anti-tipping wheels are arranged and are in correspondence to a left side and a right side of the mounting bracket respectively. Further description to the present disclosure: a lower end of each front supporting rod is hinged to the rear folding rod, a lower end of each rear supporting rod is hinged to the mounting beam, and the two rear supporting rods are positioned at inner sides of the two front supporting rods respectively. Further description to the present disclosure: the seat mechanism includes a seat cushion component, a back cushion component and angle limiting rods, an upper end of each front supporting rod and an upper end of each rear supporting rod are hinged to a bottom of the seat cushion component, a lower end of the back cushion component is hinged to a rear end of the seat cushion component, an upper end of each angle limiting rod is fixed at a rear side of the seat cushion component, and a front side of a lower end of each angle limiting rod abuts against the rear side of the seat cushion component. The present disclosure has the beneficial effects as follows: under the unfolded state and the folded state of the mobility scooter, the first locking plates can have certain movable margins, such that rigid connection to peripheral components is avoided, vibration wear is reduced, and the service life is prolonged. Moreover, folding and unfolding of the vehicle body can be completed only by arranging one telescopic motor in this design, and locking and unlocking can be automatically carried out, such that the manufacturing cost is reduced, and a bulky folding structure is also avoided. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an integral structural diagram of the present disclosure. FIG. 2 is a structural diagram (from a right view) of a vehicle body folding mechanism of the present disclosure. FIG. 3 is a structural diagram (from a left view) of a vehicle body folding mechanism of the present disclosure. FIG. 4 is a structural diagram of a linkage assembly, a supporting frame assembly and an unfolding locking hook assembly in the present disclosure. FIG. 5 is a partially enlarged diagram of portion A in FIG. 4. FIG. 6 is a structural diagram of a folding locking hook assembly in the present disclosure. FIG. 7 is a structural diagram of a driving wheel mechanism in the present disclosure. FIG. 8 is a structural diagram of a seat mechanism in the present disclosure. FIG. 9 is an integral structural diagram in a folded state of the present disclosure. FIG. 10 is a structural diagram of a vehicle body folding mechanism and a seat mechanism in the present disclosure. FIG. 11 is a partially enlarged diagram of portion B in FIG. 10. Description of reference numerals: 1. vehicle body folding mechanism; 11. front frame assembly; 111. front folding rod; 112. front hinged plate; 113. front hinged arm; 12. rear frame assembly; 121. rear folding rod; 122. mounting beam; 13. linkage assembly; 131. telescopic motor; 132. driving cross bar; 133. driving arm; 1331. elongated hole; 1332. unlocking rod; 134. first linkage arm; 1341. sliding limiting post; 135. second linkage arm; 1351. first hook portion; 14. supporting frame assembly; 141. front supporting rod; 142. rear supporting rod; 143. third linkage arm; 15. unfolding locking hook assembly; 151. first locking plate; 1511. first buckling groove; 152. first abutting post; 153. first limiting post; 154. first buckling post; 155. first spring; 16. folding locking hook assembly; 161. second locking plate; 1611. second hook portion; 1612. second buckling groove; 162. abutting plate; 163. second limiting post; 164. second buckling post; 165. second spring; 2. vehicle head mechanism; 21. steering base; 22. front wheel; 23. control handle; 3. driving wheel mechanism; 31. connecting plate; 32. mounting bracket; 33. rear wheel; 34. shock absorber; 35. rotary driving assembly; 36. first hinged rod; 37. second hinged rod; 38. anti-tipping wheel; 4. seat mechanism; 41. seat cushion component; 42. back cushion component; 43. angle limiting rod; 51. first hinged joint; 52. second hinged joint; 53. third hinged joint; 54. fourth hinged joint; 55. fifth hinged joint; and 56. sixth hinged joint. DETAILED DESCRIPTION OF EMBODIMENTS The present disclosure is further described below in combination with the drawings: As shown in FIG. 1 to FIG. 11, a fully-automatic foldable mobility scooter, including a vehicle body folding mechanism 1, a vehicle head mechanism 2, a driving wheel mechanism 3 and a seat mechanism 4, where the vehicle body folding mechanism 1 includes a front frame assembly 11, a rear frame assembly 12, a linkage assembly 13, a supporting frame assembly 14, unfolding locking hook assemblies 15 and folding locking hook assemblies 16, a left side and a right side of the front frame assembly 11 are provided with front folding rods 111 respectively, a left side and a right side of the rear frame assembly 12 are provided with rear folding rods 121 in correspondence to lower portions of the front folding rods 111 respectively, and a front end of each rear folding rod 121 is hinged to a middle of the front folding rod 111. The linkage assembly 13 includes a telescopic motor 131, a driving cross bar 132, driving arms 133, first linkage arms 134 and second linkage arms 135, a power telescopic end of the telescopic motor 131 faces a front side, a rear end of the telescopic motor 131 is hinged to the rear frame assembly 12, and a front end of the telescopic motor 131 is hinged to a first hinged joint 51 at a middle of the driving cross bar 132. Each driving arm 133 is fixed at an end portion of the driving cross bar 132, a front lower side of each driving arm 133 is hinged to a second hinged joint 52 at a front end of the rear folding rod 121, the first hinged joint 51 is higher than the second hinged joint 52, and an elongated hole 1331 is formed in a rear upper side of each driving arm 133. A third hinged joint 53 is arranged at a front side of each second linkage arm 135, a fourth hinged joint 54 and a fifth hinged joint 55 are arranged at a middle of each second linkage arm 135, a sixth hinged joint 56 is arranged at an upper portion of a rear side of each second linkage arm 135, a first hook portion 1351 is formed in a lower portion of the rear side of each second linkage arm 135, and each third hinged joint 53 is hinged to a rear end of the front folding rod 111. A front end of each first linkage arm 134 is hinged to an inner side of the fourth hinged joint 54, a rear end of each first linkage arm 134 is provided with a sliding limiting post 1341 protruding inwards, each sliding limiting post 1341 is arranged in the elongated hole 1331, and two driving arms 133, two first linkage arms 134 and two second linkage arms 135 are arranged respectively and are in correspondence to a left side and a right side of the driving cross bar 132 respectively. The supporting frame assembly includes front supporting rods 141, rear supporting rods 142 and third linkage arms 143, each front supporting rod 141 is in correspondence to a front side of the rear supporting rod 142, and a lower end of the front supporting rod 141 and a lower end of the rear supporting rod 142 are hinged to the rear frame assembly 12. A lower side of a front end of each third linkage arm 143 is hinged to an outer side of the fifth hinged joint 55, and an upper side of a rear end of each third linkage arm 143 is hinged to the front supporting rod 141. Each unfolding locking hook assembly 15 includes a first locking plate 151, a first abutting post 152, a first limiting post 153, a first buckling post 154 and a first spring 155, a front end of each first locking plate 151 is hinged to an inner side of the sixth hinged joint 56, each first abutting post 152 is fixed at a lower side of the first locking plate 151, each first abutting post 152 is in correspondence to an upper portion of a rear end of the first linkage arm 134, each first limiting post 153 is fixed at an inner side of the second linkage arm 135 and is in correspondence to a position between the sixth hinged joint 56 and the first hook portion 1351, a first buckling groove 1511 is formed at a lower side of a rear end of each first locking plate 151, each first buckling post 154 is fixed on the front supporting rod 141, each first buckling groove 1511 is buckled to the first buckling post 154, one end of each first spring 155 is fixed at a middle of the first locking plate 151, and the other end of each first spring 155 is fixed on the first hook portion 1351. The folding locking hook assembles 16 are mounted on the front folding rods 111 and the rear folding rods 121 and are configured to maintain a folded state of a vehicle body, the vehicle head mechanism 2 is mounted at a front end of the front frame assembly 11, the driving wheel mechanism 3 is mounted at a rear end of the rear frame assembly 12, and the seat mechanism 4 is mounted at an upper end of the supporting frame assembly 14. When the mobility scooter is in an unfolded state, the first locking plate 151 is tensioned by the first spring 155, and the first buckling groove 1511 and the first buckling post 154 are tightly buckled downwards, such that the fixed connection between the front folding rod 111 and the rear folding rod 121 is maintained in a moving process of the mobility scooter. Although certain vibration is generated in the moving process, the first locking plate 151 can have a certain displacement margin because the first spring 155 can be tensioned for a certain distance. That is, in the moving process, the first locking plate 151 is not in rigid connection to the front frame assembly 11 and the rear frame assembly 12, such that wear of the first locking plate can be reduced, and the service life of the first locking plate can be prolonged. When the mobility scooter needs to be folded, a power output end of the telescopic motor 131 is pushed out. Since the first hinged joint 51 is higher than the second hinged joint 52, the telescopic motor 131 drives the driving arm 133 to rotate counterclockwise around the second hinged joint 52 through the driving cross bar 132, the elongated hole 1331 in the driving arm 133 moves upwards relative to the sliding limiting post 1341, and an upper end of the driving arm 133 can eject the first abutting post 152 upwards, such that the first buckling groove 1511 is not in buckled connection to the first buckling post 154 any longer. That is, the first locking plate 151 is in an unlocked state, and the first locking plate 151 rotates clockwise around the sixth hinged joint 56 until making contact with the first limiting post 153 and stops. In the unlocked state, the driving arm 133 continues rotating counterclockwise, and the sliding limiting post 1341 makes contact with a lower end of the elongated hole 1331, such that the first linkage arm 134 can be driven to rotate clockwise around the fourth hinged joint 54, the second linkage arm 135 can be driven to rotate counterclockwise around the third hinged joint 53, and the third linkage arm 143 can be driven to rotate clockwise around the fifth hinged joint 55, thereby driving the front folding rod 111 to rotate counterclockwise around the front end of the rear folding rod 121, and making the front frame assembly 11 and the rear frame assembly 12 folded. The front supporting rod 141 and the rear supporting rod 142 automatically rotate counterclockwise around the rear folding rod 121 and are folded, thereby completing automatic folding of the mobility scooter, and an unfolding process is reversed. Under the unfolded state and the folded state of the mobility scooter, the first locking plate 151 can have a certain movable margin, such that rigid connection to peripheral components is avoided, the vibration wear is reduced, and the service life is prolonged. Moreover, folding and unfolding of the vehicle body can be completed only by arranging one telescopic motor 131 in this design, and locking and unlocking can be automatically carried out, such that the manufacturing cost is reduced, and a bulky folding structure is also avoided. Each folding locking hook assembly 16 includes a second locking plate 161, an abutting plate 162, a second limiting post 163, a second buckling post 164 and a second spring 165, where an upper end of the second locking plate 161 is hinged to an inner side of the front folding rod 111, a second hook portion 1611 is arranged at a front side of a middle of the second locking plate 161, and a second buckling groove 1612 is formed at a front side of a lower end of the second locking plate 161. The second limiting post 163 is fixed on the front folding rod 111 and is in correspondence to an upper portion of the second hook portion 1611, an upper end of the second spring 165 is fixed on the front folding rod 111, and a lower end of the second spring is fixed on the second hook portion 1611. The second buckling post 164 is fixed on an inner side of the rear folding rod 121, the second buckling groove 1612 is buckled to the second buckling post 164 in a folded state, and the abutting plate 162 is fixed on an inner side of the second locking plate 161. An unlocking rod 1332 is arranged at a front end of each driving arm 133, and the unlocking rod 1332 is in correspondence to the abutting plate 162 in the folded state. When the mobility scooter is in the unfolded state, the second locking plate 161 abuts against the second limiting post 163 under the tension of the second spring 165. In a folding process, the front folding rod 111 and the rear folding rod 121 are folded, such that the second buckling post 164 approaches the second locking plate 161. Finally, the second buckling post 164 abuts against an inclined surface of an end portion of the second locking plate 161, such that the second locking plate 161 is pushed out towards an outer side of the second buckling post 164, and then makes the second buckling post 164 tightly buckled inwards through the second buckling groove 1612, so as to maintain the locking state of a folded state. During unfolding, the power output end of the telescopic motor 131 retracts, and in the same way, under the action of the elongated hole 1331 and the sliding limiting post 1341, the driving arm 133 is allowed to rotate by a certain angle first. In this case, the unlocking rod 1332 abuts against the abutting plate 162, such that the second locking plate 161 can rotate to achieve unlocking. Then, the vehicle body is unfolded. Similarly, the second locking plate 161 can have a certain movable margin in both the unfolded state and the folded state of the mobility scooter, such that rigid connection to peripheral components is avoided, vibration wear is reduced, and the service life is prolonged. Two unfolding locking hook assemblies 15 are arranged, and the two unfolding locking hook assemblies are in correspondence to the left side and the right side of the driving cross bar 132 respectively, such that the stability of the vehicle body in the unfolded state can be ensured, and the safety is improved. The front frame assembly 11 includes front hinged plates 112, front hinged arms 113 and the front folding rods 111, where the front hinged plates 112 are fixed on the vehicle head mechanism 2, a front end of each front hinged arm 113 is hinged to a lower end of the front hinged plate 112, a front end of each front folding rod Illis hinged to an upper end of the front hinged plate 112, and a rear end of each front hinged arm 113 is hinged to a front end of the rear folding rod 121. The front hinged plate 112, the front hinged arm 113, the front folding rod 111 and the rear folding rod 121 form a parallelogram structure, such that the front frame assembly 11 can be folded, and sufficient structural strength can also be ensured. The vehicle head mechanism 2 includes a steering base 21, front wheels 22 and a control handle 23, the front hinged plates 112 are fixed on the steering base 21, the front wheels 22 are rotationally mounted on the steering base 21, and a lower end of the control handle 23 is fixed on an upper end of the steering base 21 and is adjustable at a position in a vertical direction. The rear frame assembly 12 includes a mounting beam 122 and the rear folding rods 121, and rear ends of the two rear folding rods 121 are fixed on a left side and a right side of the mounting beam 122 respectively. The driving wheel mechanism 3 includes connecting plates 31, a mounting bracket 32, rear wheels 33, shock absorbers 34 and a rotary driving assembly 35, a front end of each connecting plate 31 is fixed at a rear end of the rear folding rod 121, a front end of the mounting bracket 32 is hinged to a rear end of the connecting plate 31, and an upper end and a lower end of each shock absorber 34 are hinged to a middle of the rear supporting rod 142 and the mounting bracket 32 respectively. The rotary driving assembly 35 is fixed on the mounting bracket 32, and the rear wheels 33 are fixed at a power output end of the rotary driving assembly 35 and are driven to rotate by the rotary driving assembly 35. During folding, folding of the rear supporting rod 142 and the rear folding rod 121 simultaneously drives the connecting plate 31, the mounting bracket 32 and the shock absorber 34 to be folded, such that the folded structure is more compact. The driving wheel mechanism 3 further includes first hinged rods 36, second hinged rods 37 and anti-tipping wheels 38, an upper end of each first hinged rod 36 is hinged to a rear end of the mounting bracket 32, each anti-tipping wheel 38 is rotationally mounted at a lower end of the first hinged rod 36, and each second hinged rod 37 is in correspondence to a lower portion of the mounting bracket 32. A front end of each second hinged rod 37 is hinged to a lower end of the connecting plate 31, a rear end of each second hinged rod 37 is hinged to a middle of the first hinged rod 36, and two first hinged rods 36, two second hinged rods 37 and two anti-tipping wheels 38 are arranged and are in correspondence to a left side and a right side of the mounting bracket 32 respectively. In the unfolded state, a lower end of the first hinged rod 36 faces a rear side, such that the anti-tipping wheel 38 is positioned at a rear side of the rear wheel 33, and when the mobility scooter is on an upward slope, the mobility scooter can be prevented from tipping backward. When the mobility scooter is folded, the connecting plate 31 drives a front end of the second hinged rod 37 to move forward, such that a lower end of the first hinged rod 36 swings forward, and the anti-tipping wheel 38 also moves forward so as to avoid from protruding from the rear wheel 33, thereby further improving the compactness of the folded structure. A lower end of each front supporting rod 141 is hinged to the rear folding rod 121, a lower end of each rear supporting rod 142 is hinged to the mounting beam 122, and the two rear supporting rods 142 are positioned at inner sides of the two front supporting rods 141 respectively. In the folded state, the front supporting rod 141 and the rear supporting rod 142 are folded alternately, further making the structure compact. The seat mechanism 4 includes a seat cushion component 41, a back cushion component 42 and angle limiting rods 43, an upper end of each front supporting rod 141 and an upper end of each rear supporting rod 142 are hinged to a bottom of the seat cushion component 41, a lower end of the back cushion component 42 is hinged to a rear end of the seat cushion component 41, an upper end of each angle limiting rod 43 is fixed at a rear side of the seat cushion component 41, and a front side of a lower end of each angle limiting rod 43 abuts against the rear side of the seat cushion component 41. After folding of the vehicle body is completed, the mobility scooter is laid flat. The back cushion component 42 is automatically pressed against the seat cushion component 41 under the action of gravity. In the unfolded state, the back cushion component 42 is manually turned, such that the lower end of the angle limiting rod 43 makes contact with a rear end of the seat cushion member 41, and the position of the back cushion member 42 is fixed. The above descriptions are not intended to limit the present disclosure in any form. Any modification, equivalent change and modification made to the above examples according to the technical essence of the present disclosure still falls within the scope of the technical solution of the present disclosure.

Claims

1. A fully-automatic foldable mobility scooter, characterized by comprising a vehicle body folding mechanism (1), a vehicle head mechanism (2), a driving wheel mechanism (3) and a seat mechanism (4), wherein the vehicle body folding mechanism (1) comprises a front frame assembly (11), a rear frame assembly (12), a linkage assembly (13), a supporting frame assembly (14), unfolding locking hook assemblies and folding locking hook assemblies, a left side and a right side of the front frame assembly (11) are provided with front folding rods (111) respectively, a left side and a right side of the rear frame assembly (12) are provided with rear folding rods (121) in correspondence to lower portions of the front folding rods (111) respectively, a front end of each rear folding rod (121) is hinged to a middle of the front folding rod (111), the linkage assembly (13) comprises a telescopic motor (131), a driving cross bar (132), driving arms (133), first linkage arms (134) and second linkage arms (135), a power telescopic end of the telescopic motor (131) faces a front side, a rear end of the telescopic motor (131) is hinged to the rear frame assembly (12), a front end of the telescopic motor (131) is hinged to a first hinged joint (51) at a middle of the driving cross bar (132), each driving arm (133) is fixed at an end portion of the driving cross bar (132), a front lower side of each driving arm (133) is hinged to a second hinged joint (52) at a front end of the rear folding rod (121), the first hinged joint (51) is higher than the second hinged joint (52), an elongated hole (1331) is formed in a rear upper side of each driving arm (133), a third hinged joint (53) is arranged at a front side of each second linkage arm (135), a fourth hinged joint (54) and a fifth hinged joint (55) are arranged at a middle of each second linkage arm (135), a sixth hinged joint (56) is arranged at an upper portion of a rear side of each second linkage arm (135), a first hook portion (1351) is formed in a lower portion of the rear side of each second linkage arm (135), each third hinged joint (53) is hinged to a rear end of the front folding rod (111), a front end of each first linkage arm (134) is hinged to an inner side of the fourth hinged joint (54), a rear end of each first linkage arm (134) is provided with a sliding limiting post (1341) protruding inwards, each sliding limiting post (1341) is arranged in the elongated hole (1331), two driving arms (133), two first linkage arms (134) and two second linkage arms (135) are arranged respectively and are in correspondence to a left side and a right side of the driving cross bar (132) respectively, the supporting frame assembly (14) comprises front supporting rods (141), rear supporting rods (142) and third linkage arms (143), each front supporting rod (141) is in correspondenceto a front side of the rear supporting rod (142), a lower end of the front supporting rod (141) and a lower end of the rear supporting rod (142) are hinged to the rear frame assembly (12), a lower side of a front end of each third linkage arm (143) is hinged to an outer side of the fifth hinged joint (55), an upper side of a rear end of each third linkage arm (143) is hinged to the front supporting rod (141), each unfolding locking hook assembly (15) comprises a first locking plate (151), a first abutting post (152), a first limiting post (153), a first buckling post (154) and a first spring (155), a front end of each first locking plate (151) is hinged to an inner side of the sixth hinged joint (56), each first abutting post (152) is fixed at a lower side of the first locking plate (151), each first abutting post (152) is in correspondence to an upper portion of a rear end of the first linkage arm (134), each first limiting post (153) is fixed at an inner side of the second linkage arm (135) and is in correspondence to a position between the sixth hinged joint (56) and the first hook portion (1351), a first buckling groove (1511) is formed at a lower side of a rear end of each first locking plate (151), each first buckling post (154) is fixed on the front supporting rod (141), each first buckling groove (1511) is buckled to the first buckling post (154), one end of each first spring (155) is fixed at a middle of the first locking plate (151), the other end of each first spring (155) is fixed on the first hook portion (1351), the folding locking hook assembles are mounted on the front folding rods (111) and the rear folding rods (121) and are configured to maintain a folded state of a vehicle body, the vehicle head mechanism (2) is mounted at a front end of the front frame assembly (11), the driving wheel mechanism (3) is mounted at a rear end of the rear frame assembly (12), and the seat mechanism (4) is mounted at an upper end of the supporting frame assembly (14).

2. The fully-automatic foldable mobility scooter according to claim 1, characterized in that each folding locking hook assembly (16) comprises a second locking plate (161), an abutting plate (162), a second limiting post (163), a second buckling post (164) and a second spring (165), wherein an upper end of the second locking plate (161) is hinged to an inner side of the front folding rod (111), a second hook portion (1611) is arranged at a front side of a middle of the second locking plate (161), a second buckling groove (1612) is formed at a front side of a lower end of the second locking plate (161), the second limiting post (163) is fixed on the front folding rod (111) and is in correspondence to an upper portion of the second hook portion (1611), an upper end of the second spring (165) is fixed on the front folding rod (111), a lower end of the second spring (165) is fixed on the second hook portion (1611), the second buckling post (164) is fixed on an inner side of the rear folding rod (121),the second buckling groove (1612) is buckled to the second buckling post (164) in a folded state, the abutting plate (162) is fixed on an inner side of the second locking plate (161), an unlocking rod (1332) is arranged at a front end of each driving arm (133), and the unlocking rod (1332) is in correspondence to the abutting plate (162) in the folded state.

3. The fully-automatic foldable mobility scooter according to claim 1, characterized in that two unfolding locking hook assemblies are arranged, and the two unfolding locking hook assemblies are in correspondence to the left side and the right side of the driving cross bar (132) respectively.

4. The fully-automatic foldable mobility scooter according to claim 1, characterized in that the front frame assembly (11) comprises front hinged plates (112), front hinged arms (113) and the front folding rods (111), wherein each front hinged plate (112) is fixed on the vehicle head mechanism (2), a front end of each front hinged arm (113) is hinged to a lower end of the front hinged plate (112), a front end of the front folding rod (111) is hinged to an upper end of the front hinged plate (112), and a rear end of the front hinged arm (113) is hinged to a front end of the rear folding rod (121).

5. The fully-automatic foldable mobility scooter according to claim 4, characterized in that the vehicle head mechanism (2) comprises a steering base (21), front wheels (22) and a control handle (23), the front hinged plates (112) are fixed on the steering base (21), the front wheels (22) are rotationally mounted on the steering base (21), and a lower end of the control handle (23) is fixed on an upper end of the steering base (21) and is adjustable at a position in a vertical direction.

6. The fully-automatic foldable mobility scooter according to claim 1, characterized in that the rear frame assembly (12) comprises a mounting beam (122) and the rear folding rods (121), and rear ends of the two rear folding rods (121) are fixed on a left side and a right side of the mounting beam (122) respectively.

7. The fully-automatic foldable mobility scooter according to claim 6, characterized in that the driving wheel mechanism (3) comprises connecting plates (31), a mounting bracket (32), rear wheels (33), shock absorbers (34) and a rotary driving assembly (35), a front end of each connecting plate (31) is fixed at a rear end of the rear folding rod (121), a front end of the mounting bracket (32) is hinged to a rear end of the connecting plate (31), an upper end and a lower end of each shock absorber (34) are hinged to a middle of the rear supporting rod (142) and the mounting bracket (32) respectively, the rotary driving assembly (35) is fixed on the mounting bracket (32), and the rear wheels (33) are fixed at a power output endof the rotary driving assembly (35) and are driven to rotate by the rotary driving assembly (35).

8. The fully-automatic foldable mobility scooter according to claim 7, characterized in that the driving wheel mechanism (3) further comprises first hinged rods (36), second hinged rods (37) and anti-tipping wheels (38), an upper end of each first hinged rod (36) is hinged to a rear end of the mounting bracket (32), each anti-tipping wheel (38) is rotationally mounted at a lower end of the first hinged rod (36), each second hinged rod (37) is in correspondence to a lower portion of the mounting bracket (32), a front end of each second hinged rod (37) is hinged to a lower end of the connecting plate (31), a rear end of each second hinged rod (37) is hinged to a middle of the first hinged rod (36), and two first hinged rods (36), two second hinged rods (37) and two anti-tipping wheels (38) are arranged and are in correspondence to a left side and a right side of the mounting bracket (32) respectively.

9. The fully-automatic foldable mobility scooter according to claim 6, characterized in that a lower end of each front supporting rod (141) is hinged to the rear folding rod (121), a lower end of each rear supporting rod (142) is hinged to the mounting beam (122), and the two rear supporting rods (142) are positioned at inner sides of the two front supporting rods (141) respectively.

10. The fully-automatic foldable mobility scooter according to claim 1, characterized in that the seat mechanism (4) comprises a seat cushion component (41), a back cushion component (42) and angle limiting rods (43), an upper end of each front supporting rod (141) and an upper end of each rear supporting rod (142) are hinged to a bottom of the seat cushion component (41), a lower end of the back cushion component (42) is hinged to a rear end of the seat cushion component (41), an upper end of each angle limiting rod (43) is fixed at a rear side of the seat cushion component (41), and a front side of a lower end of each angle limiting rod (43) abuts against the rear side of the seat cushion component (41).INTERNATIONAL SEARCH REPORT International application No. PCT / CN2024 / 100360A. CLASSIFICATION OF SUBJECT MATTER B62K15 / 00(2006.01)i According to International Patent Classification (IPC) or to both national classification and IPC B. FIELDS SEARCHED Minimum documentation searched (classification system followed by classification symbols) IPC: B62 Documentation searched other than minimum documentation to the extent that such documents are included in the fields searched Electronic data base consulted during the international search (name of data base and, where practicable, search terms used) CNKI, CNTXT, VEN: ft31, ft®, IH, W; fold+, telescop+, retract+, exten+, expand+, lock+, hook? C. DOCUMENTS CONSIDERED TO BE RELEVANT Category* Citation of document, with indication, where appropriate, of the relevant passages Relevant to claim No. A CN 117382788 A (DONGGUAN SMARFODY MOBILITY TECHNOLOGY CO., LTD.) 12 January 2024 (2024-01-12) description, pages 3-5, and figures 1-11 1-10 A A CN 116923618 A (DONGGUAN SMARFODY MOBILITY TECHNOLOGY CO., LTD.) 24 October 2023 (2023-10-24) entire document CN 113636003 A (DONGGUAN SMARFODY MOBILITY TECHNOLOGY CO., LTD.) 12 November 2021 (2021-11-12) entire document 1-10 1-10 A CN 214029003 U (DONGGUAN SMARFODY MOBILITY TECHNOLOGY CO., LTD.) 24 August 2021 (2021-08-24) entire document 1-10 A CN 116767407 A (ZHEJIANG ZHONGLEI MEDICAL TECHNOLOGY CO., LTD.) 19 September 2023 (2023-09-19) entire document 1-10 | | Further documents are listed in the continuation of Box C. | J | See patent family annex. * Special categories of cited documents: “p” later document published after the international filing date or priority “A" document defining the general state of the art which is not considered date and not in conflict with the application but cited to understand the to be of particular relevance principle or theory underlying the invention “D" document cited by the applicant in the international application “X” document of particular relevance; the claimed invention cannot be “E" earlier application orpatent but published on or after the international considered novel or cannot be considered to involve an inventive step filing date when the document is taken alone “L" document which may throw doubts on priority claim(s) or which is “Y” document of particular relevance; the claimed invention cannot be cited to establish the publication date of another citation or other considered to involve an inventive step when the document is special reason (as specified) combined with one or more other such documents, such combination “O” document referring to an oral disclosure, use, exhibition or other being obvious to a person skilled in tile art means “&” document member of the same patent family “P” document published prior to the international filing date but later than the priority date claimed Date of the actual completion of the international search 14 August 2024 Date of mailing of the international search report 17 January 2025 Name and mailing address of the ISA / CN China National Intellectual Property Administration (ISA / CN) China No. 6, Xitucheng Road, Jimenqiao, Haidian District, Beijing 100088 Authorized officer Telephone No.

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